Ivory-nut-sawing machine.



PATENTED JULY 24, 1906. J. HORMBY.

` IVORY NUT SAWING MACHINE.

APPLICATION FILED APR.26,1905.

3 SHEETS*SHEET l. Q

A Inventor."

PATENTED JULY Z4, 1906.

J. HORMBY. IVORY NUT SAWING MACHINE.

APPLICATION FILED A'IR. 26. 1905.

In Ventor .f

J. HORMBY. IVORY NUT SAWING MACHINE.

APPLICATION FILED APR.26.1905.

Attjf,

PATENTBD JULY 24, 1906.

pBETS-SHBET 3.

To all whom it may concern:

, i JOH-NIIORMBY, OMF NEWv YORK, N. Y.

` IVORY-NUT-SAWING MACHINE.

specificati@ of Letters Patent.

Patented July 24, 1906.

e Application tiled April 26.1005'. Serial 110.257.421.

Be it known that I, JOHN HORMBY, a citi- 4zen of the United States, residing at New Machines, of which the following is a specifii cation.

M invention relates to ivory-nut-sawing mac es; and its novelty consists in the .construction and adaptationsof the parts, as

will be more fully hereinafter pointed out.

In the sawing of ivory-nuts it is frequently desirable to cut the nut transversely to its longitudinal axis and to cut off its ovoid ends.

- In order that the pieces so trimmed may be of two saws, whichcut the nut simultaneouslv, i the distance apart of theircutting planes depiece.

uniform Width after this operation, I employ terminin naturally the width of the trimmed n feeding these nuts to thesaws itis necessary that they should be firmly held, as the material is very hard.` It is also frequently convenient to locate the saws in such position that the workmen can readilyhandle them. I have provided therefor a carrier which receives the nut at a convenient place, is caused firmly to grasp it and convey it to the saws, which hold it after being cut, and finally discharges it automaticallyv and then also automatically is put into condition to receive another nut to repeat the operation. The carrier comprisesa plurality of pairs of jaws, so that while one nut is being laced between one pair of jaws another is eing carried between another -pair of jaws to the saws, a third is being discharged from the machine, and so on.

In the drawings, Figure 1 is a side elevation of a sawing apparatus comprising a saw and my improved carrier. Fig. v2 is an end elevation thereof, and Fig. 3 a vertical transverse section on tne plane of the line 3 3 in FO. l;

n the drawings, 10 is a frame or standard of any suitable form, construction, or material adapted to support the journal-boxes of the saw-arbore, which are provided with suitable actuating mechanism, as the pulley 11. The saws 12 13 are mounted in any approved manner and are spaced apart a proper distance by a suitable collary14 and secured in place by a nut 15, fastened to the end of the saw spindle. Mounted on the frame or standard 10 in suitable bearings 20 is a pulle 21, by means of which a carrier 30 is rotate l its shaft being made integral with `the shaft of the pulley 21. 30 is theendless carrier. It comprises 'a flat disk 3 1, mounted to rotate with a shaft 32 and secured in place thereon by a key 33 or in any other suitable manner. Placed symmetrically aroundthe carrier are jaws 40 and 41, arran ed in pairs, 40 being the fixed jaw and 41 t e movable jaws of each air. The fixed jaw 40 is secured to the face o the carrier'30 by screws 34 34 or in any other suitable manner, and the movable jaw 41 is secured to the face of the carrier to oscillate orswin upon a pin 35, being adjusted thereon y a slotte nut 36.` A fiat spring 42, securedto each fixed jaw 40 or to some press constantly against the rear su ace of the movable jaw. The means for openin andclosing the jaws. are as follows: A camisk 100 is ri dly secured to or made integral with the vame 10 jaw and arranged between it and its fixed j aw is a tripper 50. This comprises a shaft 51-,

the carrier-disk 31, provided for that p'urpose, a headieee 52, adapted to press against the front e ge ofthe movable jaw 41," and a tailpiece 53, adapted at the pro er time to be' rought into contact with an ride upon .the cam-disk 100. The head 52 and 'shaft 51 are secured to the shaft 51 b a pin 54 passing trically placed or 1s of larger radius from the Vpoint-101 to the point 102 than from the point 102 to the point 101.

is a gage-plate vertically placed and mounted upon a bracket 61 secured to the frame 10 o the machine. Its purpose is to determine the position of the nut laced-between the .jaws at that point. he nut is pressed to the right against thisplate as it is placed between the `aws'and th close upon it, the thickness of t e piece cut rom the nut being determined by the horizontal distance between the plane of the face of the gage and the plane of the saw 12.

The mode of operation of the machine is as follows: Supposing the parts to be assembled as shown in Flg. 1, it will be assumed that a nut is place between the pair of 'aws 40 and 41 op osite the gage 60. It will @observed that t e'tailpiece of the trip 50,

'asshown in the figure, is rilirr along the suitable place on the disk 31, is arran ed tov of the machine. VAdjacent to each movable which passes through a suitable aperture in preferably made integral, and the tail 53 is through both. The camisk is either eccen- IOO g Y Y 826,785

periphery of the cam-plate 100 and is ap l proaching the point 102. -The head-piece 52 of this trip 50 is in the position shown, pressing upward against the 'aw 41 to keep it apart from the jaw 40. biow if the neXt pair of jaws toward the saw are vexamined (and it is obvious that fthis pair will show the position of the pair just spoken of when the.

carrier has rotated an elghty part of its path) 1o vit will seen'thatthe tailpiece nolonger rides upon the periphery o the ,cam 0, vbut is separated from lit, and that the head-piece 52 no longer presses against the movable ljaw 4l, but is -away from it, `-and 'thatthe spring 42 presses dow-n to Case the jaws to grasp rfirmly the nil-t 70 between them. As the'carrier Continues to rotate, the nut 'is brought between the Isavv'sdt's ovoidfends are removed-thereby, andasthe carrier continues .,o to rotate the trim-:med pe'celis still held loeftween the ljaws which raspnitj When, how- 'feven the point IO]bz o the periphery of the earr'lplate 100 lis geaehed', #heten-piece '53 of the tripper 50 cornes 'into con-tact again with s fthesad periphery and-throws *forward the head-piece lgtoypress against the movable jaw 4l 'to movfe 'iltaway from the fixed jaw 40,

" and thus' to cause'itto loosen 'its grasp upon .ithatriznrned 'pec'e-Qofrnut, Whchis thereby A permitted "to fdrop' 'The Ajaw 'remains open l 111ml Ifthe -taipiece'of 'thi'tripper 50 again. ae'xes the vpoint y102', when the parte Aare f aliased iy'the`*aetion of the-spring 42.

What I claim as new is- 1. In an apparatus of the kind described, the combination of a stationary cam-disk, a rotary endless carrier adjacent thereto and concentric therewith, a series of -iJred jaws on the carrier, a series of corresponding mov- Aable jaws on the carrier, a spimg pressing each movable `aw toward the corresponding fixed jaw, an a trip for each pair of jaws pivoted to the carrier and'perated by the cam to force the movable jaw away from the fixed jaw at `a :predeternnned peint Lin the rotationof the carrier. y

2. in an apparatus of the l'kind described, the combination o5? a stationary cana-dis ,-'a rotaryendless carrier-plate `by *the side thereof and concentric therewith, a series of rhired jaws secured 'on the o posits "iaeeo'f the'oarvtier-plate, Corresponding mov-able jaws `on the' same side of vthe plate normallyspiingpressed `toward ,the Vmovable jaws,- `a seir'ies'offk shafts passing through apertures tin theoarner-plate, a Atripper head-piece secured-on each shaft between Veach pair of Ijaws, and 'a trip eretailpeee onfthe'opposite-eni'of `'each sha tfin position v`to be operated vby these-nr to open -the jaws at "predetermined times.

In testimony whereof iI affix any signature in presence of two Witnesses. j

'JOHN HORMBY. Witnesses: A 'Rosa LEM, CARRIE fB. TnonesoN. 

